You have a blue hydrangea, a very beautiful one, but if you plant it in the garden it suddenly turns pink and you don’t like that? Rest assured, you can probably make it blue again yourself! Here comes the tip and explanation for this weird ?? phenomenon.
The hydrangea
The hydrangea is a plant that we have known for a long time. In the past, the hydrangea the farmyards and nowadays you see it in many gardens. People often find the bright colors of the bulbous flower very beautiful. The scientific name for the hydrangea is Hydrangea paniculata. The large spherical flowers consist of many small flowers that are arranged spherically. The hydrangea is available in white, red, pink and blue.
A discolored hydrangea, what now?
The color of the hydrangea is determined by the acidity off the ground. So if you buy a beautiful blue hydrangea in the store, it may be that it will turn pink once planted in the ground. If the soil is more acidic (the acidity is higher) more metals can dissolve in it and this is where the discoloration of the hydrangea comes through.
The solution
What you can do best for hydrangea color to change (from pink to blue) is to dig a handful of rusty nails into the ground near the plant. In an acidic soil with some iron or aluminum, the hydrangea turns blue, in a less acidic soil pink. To keep a blue hydrangea, it is important not to water the plant with calcareous water, as this ensures that the soil becomes less acidic.